SU757751A1 - Apparatus for neutralizing gas waste of i.c. engine - Google Patents

Description

The invention relates to the field of engineering, in particular to internal combustion engines, and in particular to devices for reducing toxic exhaust gases in diesel exhaust systems.

A device for the disposal of exhaust gases of an internal combustion engine (exhaust gas of the internal combustion engine) is known, containing a housing installed in series with a neutralizer and a liquid venturi scrubber [1].

The disadvantages of the known devices are the low efficiency ._ cleaning the exhaust gas from soot and Bene / a / pyrene ' ⁵ and high gas-dynamic resistance.

* The aim of the invention is to increase efficiency and reduce gas-dynamic resistance. ^m

This is achieved by the fact that the device additionally contains a container with a filtering bed and a receiver for collecting the spent neutralizing liquid 25 interconnected by a pipe, and the Venturi scrubber is made in one piece with the neutralizer body and placed concentrically in the pipe, with the neutralizer housing attached to.

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attached to the container; The supply line of neutralizing liquid from the tank to the scrubber is made with a flexible tube, and the latter is fixed on the scrubber and on the pipe.

The drawing schematically shows the proposed device.

The device for neutralization of exhaust gases of the engine contains a neutralizer 1, to which the exhaust pipe 2 is connected, the tank 3 for filling the neutralizing liquid, the float chamber 4 and the connecting pipe 5;

The neutralizer is a detachable connection and consists of the upper unit 6, the lower unit - receiver 7, containers 8 and 9 with gravel filtering bed, body 10, inside of which is located the catalytic reactor 11. The units are connected using flange connection 12.

The upper block 6 is a container of rectangular cross-section in which the central tube 13 is placed. The internal volume of the block, excluding the 'volume of the tube 13, is divided by a longitudinal horizontal partition 14 into

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two cavities 15 and 16. Containers 8 and 9 with filter filling are installed on the partition '14. The lid and bottom of the containers, as well as the partition in the area of the location of the containers, have openings that allow the exhaust gas to pass only through the filling. The lower and upper ends of the pipe 13 are provided with flanges: the receiver 7 is attached to the lower flange, and the supply of neutralizing fluid to the neutralizer is also provided, and the housing to the upper flange.

10. In the cavity 16, the pipe has openings 17 for the passage of exhaust gases.

Inner housing 10 is scrub-. ber Verturi. It consists of a confuser 1! 3, a nozzle 19 and a diffuser 20. The connection between these elements is carried out with the help of flanges. A catalytic reactor 11 is placed at the confuser port. The confuser is flanged on the ends: a reactor 11 is attached to the upper flange, and a nozzle 19 is attached to the lower flange. The confuser's lower flange is equipped with a channel through which water is supplied to the sprayer 21. 11 ensures the performance of the structure with significant linear deformations of these elements with significant temperature changes: the free end of the diffuser is equipped with floating supports, which provide both concentric and This arrangement of the body in the pipe, and its free movement relative to the latter. The section of the pipeline 5 from the flange connection 12 to the lower flange of the confuser is made in the form of a flexible spiral tube.

The receiver 7 has a rectangular cross section. It also houses the central pipe 22. From the ends, the pipe is equipped with flanges, of which the upper one is designed to connect to the upper unit, and the lower one is closed by a plug 23. The latter is equipped with a pipe with a tap 24 for condensate with soot. Cavity pipe and block, receiver, with. communicated with each other by holes 25.

The tank 3, the float chamber 4 and the connecting pipe 5 form a system for feeding the neutralizer liquid. bone. The tank with the float chamber is communicated by means of a pipe 26 in which a crane 27 is installed. Chamber 4 is equipped with a float 28, which is connected to the camera body by an axis 29. The float lever is equipped with a valve 30, which depends on the water level and, consequently, the height of the float , opens or closes the end of the pipeline 26. Pipeline. 31 with a tap 32 is designed to drain the solution, in particular water, from the Float chamber. Channel 33 serves to equalize the pressures in the tank and floats with the p chamber. With the help of the tube 34 in the tank and the chamber can be

a pressure equal to that of the exhaust gas before the nozzle is set. Pipeline 5 is designed to supply a neutralizing liquid from the float chamber to the Venturi scrubber diffuser. To stabilize the flow rate of the liquid, regardless of various factors, for example, technological order, the pipeline 5 is equipped with an adjustable choke 35. The tank is filled with liquid through the filling port 36.

The device works as follows.

Before starting work, the valve 27 must be open, and the liquid from the tank fills the float chamber to a certain level. At the same time, taps 24 and 32 must be closed.

From the engine, the exhaust gases through the exhaust pipe 2 enter the converter 1. At the beginning of the exhaust gas pass through a catalytic reactor, where they are cleaned from carbon monoxide, hydrocarbons and partially from soot, and then enter the confuser. In the latter, the flow narrows, its speed increases. Before entering the nozzle, the flow captures the particles of the neutralizing liquid, since with an increase in the flow velocity the static pressure in it drops. In the nozzle and diffuser, the neutralizing liquid is evaporated and mixed with gases: soot is contacted with vapor and liquid droplets.

In the diffuser, the flow rate slows down, the static pressure rises, soot coagulation and condensation of liquid vapor on its particles occurs. Liquid carcinogenic benz £ a] pyrene is also controlled. In receiver 7, there is a sharp decrease in the flow rate and accumulation of an excess amount of non-evaporated liquid, as well as trapped soot, hydrocarbons, and other components. Then the flow of gases and vapors of the liquid changes direction, moving up through the annular cavity between the inner wall of the central carrier tube and the outer surface of the housing 10. The further flow path is possible only through the openings 17 of the central tube of the upper unit and through the gravel filling in containers 8 and 9. Here too the vapor of the neutralizing liquid condenses with soot and traps benzo [a] pyrene. Condensed liquid on the inclined planes of the bottom of the upper unit and the walls of the central pipe flows into the receiver 7. The cleaned gases leave the neutralizer through the exhaust pipes 37 and 38.

As a result of the unified design of the catalytic converter housing with the Venturi scrubber and their placement in the carrier pipe, a significant increase in the operating efficiency was achieved.

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you, the gas-dynamic perfection of the exhaust gas flow path, as well as the dimensions and weight of the structure are reduced. The device can be used for all types of diesel engines, including supercharged ones.

Claims (2)

Claim 1. A device for decontamination of exhaust gases of an internal combustion engine, comprising a sequential case with a neutralizer and a liquid Venturi scrubber, as well as a tank with a neutralizing liquid, connected to a supply line with a scrubber, characterized in that, in order to increase efficiency and reduce gas-dynamic resistance, the device additionally contains a container with a filtering bed and a receiver for collecting spent neutral 5 36 ----- 10 15 Compiled by O. Nemtsov Tehred M. Petko Editor T. ' Ivanova lysing fluid, interconnected by a pipe, and the venturi scrubber is made in one piece with the Neutralizer case and placed concentrically in the pipe, with the neutralizer case attached to the container. 2. Device by π. 1, characterized in that the line supplying neutralizing liquid from the tank to the scrubber is made with a flexible tube, and the latter is fixed on the scrubber and on the pipe.